Effect of Calcination Temperature over the Performance of Mn-Ce-O on the Catalytic Ozonation of Olive Mill Wastewater. (3rd July 2016)

• Record Type: Journal Article
• Authors: Martins, Rui C.; Rodrigues, Vítor; Costa, Margarida R.; Castro, Luís M.; Quinta-Ferreira, Rosa M.
• Is Part Of: Ozone: science and engineering. Volume 38:Number 4(2016)
• Page Start: 261
• Page End: 271
• Publication Date: 2016-07-03
• Subjects: Ozone -- Calcination Temperature -- Catalyst Characterization -- Catalytic Ozonation -- Kinetic Studies -- Phenolic Compounds; Ozone -- Periodicals; 665.89
• DOI: 10.1080/01919512.2015.1134307
• Languages: English
• ISSNs: 0191-9512

Abstract

ABSTRACT: The effect of calcination temperature on Mn-Ce-O 70/30 characteristics, activity and stability was investigated when this catalyst was applied on the catalytic ozonation of a phenolic mixture. Two crystalline phases (cubic CeO2 and tetragonal Mn3 O4 ) were observed by X-ray diffraction analysis, which also showed an increase of crystallinity with temperature. The material prepared at 300 ºC was the most efficient regarding TPh (100%), TOC (80%) and COD (62%) removal, as well as revealed to be the one leading to the lowest amount of Mn leached. The generalized kinetic model (GKM) was able to describe mineralization during this catalytic process with relative errors of ±10%.